rapid light response curve
light-light transfer efficiency
lightweight Light-Expansion Concrete
photosynthetic light curve
White Light Light-Emitting Diode
curve-curve intersection
transition curve；easement curve；spiral transition curve
rapid excavation and rapid sealing
rapid prototype and rapid pattern making
anti-visible light and infrared light
breakdown light {NUC light}
digital light processing DLP light source
high light efficiency light source